#TestCase 1
#Expected pass
#Observed pass
./Grades 100 50

#TestCase 2
#Expected fail 
#Observed fail
./Grades 30 50

#TestCase 3
#Expected fail
#Observed pass
./Grades 20 80

#TestCase 4
#Expected fail
#Observed pass
./Grades 20 70

#TestCase 5
#Expected fail
#Observed pass
./Grades 150 10 

#TestCase 6
#Expected Invalid Input
#Observed program closes
./Grades 150 150
